WO1997041122A1 - 3- and 3,8-substituted 1,10-phenanthrolines and their use in electron and energy transfer processes - Google Patents
3- and 3,8-substituted 1,10-phenanthrolines and their use in electron and energy transfer processes Download PDFInfo
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- WO1997041122A1 WO1997041122A1 PCT/US1997/007259 US9707259W WO9741122A1 WO 1997041122 A1 WO1997041122 A1 WO 1997041122A1 US 9707259 W US9707259 W US 9707259W WO 9741122 A1 WO9741122 A1 WO 9741122A1
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- phenanthroline
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- 0 **c1cnc2c(nccc3)c3ccc2c1 Chemical compound **c1cnc2c(nccc3)c3ccc2c1 0.000 description 3
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic System
- C07F15/0006—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic System compounds of the platinum group
- C07F15/0046—Ruthenium compounds
- C07F15/0053—Ruthenium compounds without a metal-carbon linkage
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H21/00—Compounds containing two or more mononucleotide units having separate phosphate or polyphosphate groups linked by saccharide radicals of nucleoside groups, e.g. nucleic acids
Definitions
- the invention relates to 1 ,10-phenanthrol ⁇ ne derivatives substituted at the 3-, 8- positions
- Ruthenium coordination compounds play a central role in these systems, for example, ruthenium complexes of polypy ⁇ dine ligands are potential building blocks for luminescent and redox active assemblies as well as for "molecular wires"
- ruthenium complexes of polypy ⁇ dine ligands are potential building blocks for luminescent and redox active assemblies as well as for "molecular wires"
- Juris A , Balzani, V , Ba ⁇ gelletti, F , Campagna, S , Belser, P , Von Zelewsky, A Coord Chem Rev 1988, 84, 85-277
- For some selected examples for the construction of multinuclear ruthenium complexes see (a) Grosshenny, V , Ziessel, R J Organometallic Chem 1993, 453, C19-C22 (b) Romero, F M , Ziessel, R Tetrahedron Lett 1994, 35, 9203-9206 (c) Masschelem,
- t ⁇ s(2,2'-b ⁇ pyr ⁇ dyl)ruthen ⁇ um(ll) exhibits NLO effects, (see Zyss, J et al , Chem Phys Lett 1993, 206, 409-414, see for a review that summarizes the application of organometallic compounds for non-linear optics Long, N J Angew Chem Int Ed Engl 1995, 34, 21-38) however, tr ⁇ s([4,4'-d ⁇ butylam ⁇ nostyryl]-2,2'-b ⁇ pyr ⁇ dyl)-ruthen ⁇ um(ll) shows much larger optical non-linearities (Dhenaut, C et al , Nature 1995, 374, 339-342)
- the present invention provides methods for making derivatives of phenathrohnes comprising reacting a 3,8 brominated phenanthroline with an acetylene to form an acetylene derivative of phenanthroline
- the invention further provides methods of hydrogenating the acetylenes to form alkene and alkane derivatives of phenanthrohnes
- the invention provides compounds having the formula comprising
- a and B are selected from carbon or nitrogen such that Y is a bond selected from the group consisting of acetylene, alkene, alkane, azo or imine, and Z is alkyl, substituted alkyl, aromatic or substituted aromatic group
- the invention provides compounds having the formula comprising
- Z is alkyl, substituted alkyl, aromatic or substituted aromatic group
- the invention provides compounds which are polymers having the formula
- the invention provides compounds comprising derivatives of 1 ,10- ⁇ henanthrol ⁇ ne, and methods useful in their synthesis
- the 3-, 8- positions of 1,10-phenanthroline have special properties It is very difficult to modify 1,10-phenanthroline at these positions
- the novel methods disclosed herein allow the facile bromination of 1 , 10-phenanthrol ⁇ ne at one or both of these positions
- the brominated 1 ,10- phenanthroline is then useful in a wide variety of reactions, most particularly in reactions with aromatic and aliphatic acetylenes, acetenes and azo derivatives, to form a wide variety of compounds
- compounds containing the 3- and/or 8-mod ⁇ f ⁇ ed 1 ,10-phenanthroline are used to chelate a va ⁇ ety of metals such as transition metals
- the resulting metal complexes are useful in a wide variety of applications, including novel dendritic materials and for the addition of such transition metal complexes to nucleic acids and other biological
- the compounds of the invention are modified at at least one of the 3-, 8- positions, and thus have the formula comprising Structure 1
- a and B are each independently either carbon or nitrogen, and Y is preferably a conjugated bond, that is, a bond that contains a sigma ( ⁇ ) bond and at least one pi ( ⁇ ) bond
- Preferred embodiments utilize carbon as both the A and B atoms, thus forming either acetylene (ethynyl, one sigma and two pi bonds, Structure 2) or acetene (ethylene, one sigma and one pi bond, Structure 3), or both nitrogens, thus forming azo bonds (Structure 4), although imine bonds may also be used in some embodiments
- a and B are both carbons and Y is an alkyl bond (ethane, sigma bond, see Structure 3A)
- the A-B bond is unsaturated, there may be either hydrogen atoms or substitutent groups attached to the A and B atoms
- Y is an alkene or double bond
- Acetylene linkages are preferred, and the remainder of the disclosure and structures herein will be directed primary to the invention utilizing acetylene linkages It will be appreciated by those in the art that acetene, alkyl, azo or imine linkages may be substituted for one or more of the acetylene linkages in any of the structures
- linkers containing more or less than the A and B atoms, with attached moieties may be used, as is generally depicted in Structure 4A below
- D is a linker moiety
- linkers can be used The composition and length of the linker may vary widely In one embodiment, a single atom, with attached hydrogens or substituent groups is used, for example, a -CH 2 - group (or - CHR- or -CR 2 - group) or an ammo group (-NH- or -NR-) may be used Linkers utilizing two atoms such as acetylene, alkene, alkyl and azo bonds, are described above Alternatively, linkers with more than two atoms are used in the linkage, that is, longer linkers may be utilized to connect the phenathroline derivative and the Z moiety This may be preferred to avoid steric or metal ion disruption of the biological function of the Z moiety, for example, when Z is a nucleic acid base, in some embodiments it may be desirable to have the metal ion at a distance from the duplex Preferred linkers include, but are not
- the compounds of the invention are modified at both the 3- and 8- positions, and thus have the formula depicted in Structure 5, with acetylene linkages Structure 5
- the compounds of the invention serve as metal chelates, preferably transition metal chelates, and thus the compounds further include a metal ion or atom That is, the nitrogens of the 1 ,10-phenanthroline serve as coordination atoms, preferably in conjunction with other ligands, for the chelation of a transition metal atom or ion, as is generally depicted in Structure 6
- M is a metal atom, with transition metals being preferred Suitable transition metals for use in the invention include, but are not limited to, Cadmium (Cd), Copper (Cu), Cobalt (Co), Zinc (Zn), Iron (Fe), Ruthenium (Ru), Rhodium (Rh), Osmium (Os) and Rhenium (Re), with Ruthenium, Rhenium and Osmium being preferred and Ruthen ⁇ um(ll) being particularly preferred
- X is a co-ligand, that provides at least one coordination atom for the chelation of the metal ion
- the number and nature of the co-ligand will depend on the coordination number of the metal ion Mono-, di- or polydentate co-hgands may be used
- n will be from 1 to 10, depending on the coordination number of the metal ion
- the metal ion has a coordination number of six and two bidentate co-ligands are used (X and X,), as is depicted in Structure 7 (corresponding to Structure 2) and Structure 8 (corresponding to Structure 5) Structure 7
- the co-ligands can be the same or different, or only one may be present Suitable ligands are well known in the art and include, but are not limited to, amines, pyridine, pyrazine, isonicotinamide, imidazole, bipyridine (abbreviated bpy) and substituted derivatives of bipyridine such as tetramethylbipyndyl (Me 4 bpy), phenanthrolines, particularly 1,10-phenanthroline (abbreviated phe ⁇ ) and substituted derivatives of phenanthrolines such as 4,7-d ⁇ methylphenanthrol ⁇ ne and the compounds disclosed herein, dipyndophenazine, 1 ,4,5,8, 9, 12-hexaazatr ⁇ phenylene (abbreviated hat), 9,10-phenanthrenequ ⁇ none d ⁇ m ⁇ ne (abbreviated phi), 1 ,4,5,8-tetraazaphenanthrene (abbre
- a single transition metal ion utilizes one, two or three phenathroline derivatives as the ligands
- enatiome ⁇ cally pure ligands may be used, to form diastereome ⁇ cally pure metal containing complexes, for example, metal containing nucleosides
- Z is an aromatic, substituted aromatic, alkyl or substituted alkyl group or a Silicon (Si) or Tin (Sn) moiety
- aromatic or "aromatic group” herein is meant aromatic and polynuclear aromatic rings including aryl groups such as phenyl, benzyl, and naphthyl, naphthalene, anthracene, phenanthroline, heterocyclic aromatic rings such as pyridine, furan, thiophene, pyrrole, indole, pyrimidine and pu ⁇ ne, and heterocyclic rings with nitrogen, oxygen, sulfur or phosphorus
- Preferred aromatic groups include phenyl groups, pyridine, pu ⁇ ne, pyrimidine and phenathroline groups
- substituted aromatic group herein is meant that the aromatic moiety to which the 1,10- phenanthroline is attached contains further substitution moieties That is, in addition to the phenanthroline derivative, the aromatic group may be further substituted by any number of substitution moieties
- the substitution moiety may be chosen from a wide variety of chemical groups, or biological groups including ammo acids, proteins, nucleosides, nucleotides, nucleic acids, carbohydrates, or lipids That is, any group which contains an aromatic group may serve as the substituted aromatic group Suitable chemical substitution moieties (sometimes referred to herein as "R" groups) include, but are not limited to, alkyl, aryl and aromatic groups and their substituted derivatives, ammo, nitro, phosphorus and sulfur containing moieties, ethers, esters, and halogens
- the substitution moiety of the aromatic group is acetylene linked 1 ,10- phenanthrohne of Structure 2, i e
- alkyl group or grammatical equivalents herein is meant a straight or branched chain alkyl group, with straight chain alkyl groups being preferred If branched, it may be branched at one or more positions, and unless specified, at any position
- the alkyl group may range from about 1 to 20 carbon atoms (C1 - C20), with a preferred embodiment utilizing from about 1 to about 15 carbon atoms (C1 - C15), with about C1 through about C10 being preferred, although in some embodiments the alkyl group may be much larger
- heteroalkyl groups which include heteroatoms such as nitrogen, oxygen, sulfur and phosphorus
- cycioalkyl groups such as C5 and C6 rings, and heterocyclic rings with nitrogen, oxygen, sulfur or phosphorus
- alkyl includes alkynyl, alkenyl, and alkanyl, and mixtures thereof
- substituted alkyl group herein is meant an alkyl group further comprising one or more substitution moieties, as defined above
- sicon moiety herein is meant an alkylsilyl group, with tnalkylsilyl being preferred and t ⁇ methylsilyl (TMS) being particularly preferred
- tin moiety herein is meant an alkylstannyl group
- the phenanthroline is linked to an aromatic or alkyl group containing a substitution moiety such that the phenanthroline is conjugated with the substitution moiety
- a substitution moiety such that the phenanthroline is conjugated with the substitution moiety
- the Z group comprises a biological moiety such as a nucleotide or a nucleic acid
- the preferred attachment is through the nucleoside base, i e an acetylene group is attached to the base for example as depicted below in Structure 9, although as outlined herein the attachment may be through other bonds including alkene, alkyl and azo bonds That is, the aromatic heterocyclic base is an aromatic group, and the remainder of the nucleotide or nucleic acid comprises the substitution moiety of the aromatic group
- nucleoside herein is meant a pu ⁇ ne or pyrimidine nitrogen base bonded to a carbohydrate such as a nbose, i e adenosine, guanosine, thymidine, cytidme, and undine
- nucleotide herein is meant a nucleoside further containing
- Structures 9, 10, and 11 depict a 3-acetylene-phenanthrol ⁇ ne modified undine nucleoside, nucleotide, and phosphoramidite nucleotide respectively
- Structure 12 depicts a undine attached to a peptide nucleic acid backbone subunit, all attached to the 1,10-phenanthroline via the acetylene linkage described herein, in the absence of metal ions and co-ligands
- Structures 9, 10, 11 and 12 depict the attachment via the 5 position of the uracil base, although attachment at the 6 position are also possible.
- R can be either H (deoxyribose) or OH (ribose).
- These structures may also include the transition metal ion and co-ligands, as will be appreciated in the art, or alternative linkages such as alkene and alkyl linkages and their substituted derivatives, azo and imine bonds, and D linkers, as defined herein
- the protecting group depicted in Structure 11 may be any number of known protecting groups, such as 5 dimethoxyt ⁇ tyl (DMT), see generally Greene, Protecting Groups in Organic Synthesis, J Wiley & Sons, 1991
- linkages such as acetylene linkages may also be made to the bases of the other nucleic acids, including cytosme, thymine, adenine, and guanine
- linkage is preferably via
- the linkage is preferably via the 5 and 6 positions For adenine, the linkage is preferably via the 8 position For guanine, the linkage is preferably via the 8 position
- the synthesis of the compounds may require the use of protecting groups for moieties of the compound, such as the base or sugar, such as a protecting group for the exocyclic ammo group of cytosme, etc Protecting groups are known in the art, see Greene, supra
- the phenanthroline compounds of the present invention may also be attached to ammo acids and proteins (including polypeptides and peptides)
- ammo acids and proteins including polypeptides and peptides
- covalent attachment may be done through the ammo acid side chains
- the Z group contains one or more acetylene-linked 1 ,10-phenanthrol ⁇ nes as the substitution group
- multimers and polymers or dendnmers of the basic compound of Structure 1 can be made
- multimers herein is meant two or more 1,10-phenanthrol ⁇ nes linked via a single Z group That is, a single Z group has two or more phenanthroline groups attached
- the Z group may be substituted by one or more
- polymers When the multimers are further extended, that is, the 1 , 10-phenanthrol ⁇ ne is substituted, for example to form acetylene linkages at both the 3- and the 8- position, polymers may be formed.
- the polymers of the invention have the general structure shown below, depicted below with the metal ion and co- ligands, and using acetylene linkages, although as described herein other linkages may be used.
- various metal ions and Z groups substituted or unsubstituted
- the polymer may comprise more than one type of metal ion and more than one type of Z group
- the 1 ,10-phenanthroline may be additionally substituted, and thus substituted and unsubstituted 1 ,10-phenanthroline may be used
- substitution positions are chosen for linear molecules, such that the molecules are fully conjugated Alternatively, such as depicted in Structures 15 and 17, the molecules are non-linear
- Z groups may be used that contain three or more acetylene-linked 1 , 10-phenanthroline groups, thus forming "cross-linking" structures, or dend ⁇ mers
- the 1 ,10-phe ⁇ anthrol ⁇ nes depicted in Structure 15 have additional Z groups at the 8- position, as is depicted below in Structure 17 (with acetylene linkages in the presence of metal ion and two co-ligands)
- the Z groups are preferably aromatic groups, with phenyl being preferred
- the 1 ,10-phenanthroline may be substituted at other positions in addition to the 3-,8- position, as defined above, as depicted in Structure 18 in the absence of the metal ion and co-ligands
- R may be a wide variety of R substitution groups, as defined above In some embodiments, adjacent R groups form cyclic, preferably aromatic groups, conjugated to the phenanthroline If the R groups are added prior to bromination, the R groups preferably do not interfere with the bromination at the 3 and/or 8 positions Structure 18
- the compounds of the invention generally are charged, due to the metal ion
- the invention further provides methods for the synthesis of the compounds depicted herein
- the invention provides methods for the bromination of 1 ,10-phenanthroline at the 3 and/or 8 positions
- the method comprises reacting an acid salt of 1,10-phenanthroline with bromine in the presence of a solvent such as nitrobenzene, bromobenzene, or chlorobenzene
- acid salt herein is meant a compound derived from the acids and bases in which only a part of the hydrogen of the acid is replaced by a basic radical
- Preferred acid salts include the monohydrochlo ⁇ de monohydrate of 1 ,10- phenanthroline (1 in Scheme I)
- the acid salt form is generated in situ and thus is not required as a starting material
- the solvent used may be nitrobenzene, bromobenzene, or chlorobenzene The method is schematically depicted in Scheme I
- Scheme I generally results in a mixture of 3-bromo-phenanthrol ⁇ ne and 3,8-bromo-phenanthrol ⁇ ne, which are separated using a variety of techniques known in the art, such as silica gel purification and flash column chromatography The 3- or 3,8 brominated 1 ,10-phenanthroline is then used in a variety of reactions to form the compounds of the invention
- palladium-mediated cross coupling as is known in the art is used to react the brominated 1 ,10-phenanthroline with a Z group such as an aromatic acetylene to form the compounds of the invention, as is generally depicted in Scheme II
- a Z group such as an aromatic acetylene
- the brominated 1 ,10- phenanthroline is reacted with an acetylene, to form a 3- or 3,8-acetylene-phenanthrol ⁇ ne, which then may be reacted with a halogenated aromatic Z group to form the compounds, as is depicted in Scheme III
- transition metal ions and co-ligands can then be added, using techniques well known in the art.
- the reaction conditions may vary slightly with different metals, for example, ruthenium has a faster rate of ligand exchange than osmium
- the palladium-mediated cross coupling reaction is done with the compounds already containing the transition metal ions and co-ligands
- this has the advantage of allowing the synthesis of diastereome ⁇ cally pure metal containing Z compounds
- ethynyl-contaming nucleosides may be reacted with functionalized coordination complexes containing resolved ligands, to form diastereome ⁇ cally pure metal containing nucleosides
- the electron withdrawing properties of the transition metal ion facilitates the addition reaction, allowing a simple single step synthesis, as is depicted in Scheme IV (3-brom ⁇ nated 1 ,10-phenanthroline and aromatic acetylene) and Scheme V (3-acetylene- phenanthroline and aromatic bromine)
- aromatic acetylenes may be made using techniques well known in the art See for example, Nguyen et al , Synlett 1994, 299-301 , expressly incorporated herein by reference Many aromatic acetylenes are commercially available, such as phenylacetylene, 4-ethynyltoluene, or are easily generated from brominated precursors, for example, 1 ,3,5 tnbromobenzene is commercially available
- the compounds of the invention are attached to nucleosides, nucleotides, and nucleic acids
- halogenated nucleosides are commercially available
- undine iodinated at the 5- position may be used in either Scheme III or Scheme V
- the phosphoramidite derivative of the nucleotides may be made as is known in the art, and generally depicted below in Scheme VA for undine and Scheme VB for cytosme Scheme VA
- Scheme VA may also be modified to include the protection of the 5'-hydroxyl as the DMT derivative before the cross-coupling with 3-bromo-1 ,10-phenanthroi ⁇ ne, which renders the compounds more soluble in organic solvents but does not significantly affect their reactivity
- other protecting groups may be used to protect reactive moieties on the compounds, such as on the base or sugar
- the nucleosides can be coupled to solid supports such as controlled pore glass (CPG) using techniques well known in the art, to synthesis metal-containing oligonucleotides with the modification at the 3' end
- CPG controlled pore glass
- the invention further provides methods of generating nucleic acids comprising the compounds of the invention
- the method comprises incorporating a phosphoramidite nucleotide containing the acetylene-linked 1 ,10-phenanthroline into a synthetic nucleic acid, using techniques well known in the art
- the compounds of the invention may be incorporated into a nucleic acid at any position, e g 3', 5', or at an internal position
- the compounds may also be incorporated into proteins, using for example attachment to ammo acid side chains, including phenylalanine, trptophan, tyrosine, and histidine, using techniques similar to those outlined herein, as will be appreciated by those in the art
- a preferred embodiment utilizes polymers or dendnmers of the compounds of the invention
- Polymers can be generated by using 3,8 halogenated 1 ,10-phenanthroline, and any number of Z groups
- the polymers are generated using a single type of Z group, preferably an aromatic group
- a preferred embodiment utilizes 1 ,3,5-tr ⁇ ethynylbenzene as an aromatic acetylene
- Alternative embodiments utilize other Z groups
- the polymers are generated using more than one type of Z group, thus forming co-polymers
- Z group any number of different Z groups may be used
- the compounds of the invention are purified if necessary, using techniques known in the art
- the phenanthroline compounds of the invention are fluoroscent, and in a preferred embodiment, may be used as labels
- nucleic acids or proteins may be labelled with the phenanthroline compounds of the invention as described herein
- nucleic acid probes may be made and labelled with the compounds of the invention, for the detection of target sequences, for example for diagnostic purposes
- the fluoroscent properties of the compounds may be used as the basis of a hybridization assay, as it is expected that the fluoroscent properties of the phenanthroline de ⁇ vatives might change upon the hybridization of a target sequence to a probe sequence
- the compounds are used to attach metal ions to biological moieties such as nucleic acids and proteins for energy and electron transfer purposes
- the compounds of the invention are used to make multimetallic assemblies for the study of energy and electron transfer, and find application in the area of non-linear optics, liquid crystals, electrochromic display devices, photonic and electrochemical sensing devices, energy conversion systems, information recording and "molecular wires"
- Phenanthroline substituted in either the 3 or the 3 and 8 positions have been traditionally difficult to functionalize, requiring low-yield multi-step Skraup reaction sequences (see Case, supra)
- Conventional wisdom advises that simple bromination of 1,10-phenanthroline is poor and unselective See Katntzky et al , Electrophilic Substitution of Heterocycles Quantitative Aspects (Vol 47 of Adv Heterocycl Chem ), Academic Press San Diego, 1990, Graham, in the Chemistry of Heterocyclic Compounds, Allen, Ed Inters ⁇ ence Publishers, Ine New York 1958, pp386-456
- a direct bromination reaction gives low yields of di-, tn- and tetrabrommated 1,10-phenanthroline and traces of the 3- and 5- bromo derivatives has been reported, see Denes et al , J Prukd Chem 320 172-175 (1978)
- the new ligands are synthesized by cross-coupling reactions between
- the complex [(bpy) 2 Ru(3-bromo-1 ,10-phenanthrol ⁇ ne)] 2+ (PF 6 -) 2 (1) is an attractive building block for the synthesis of multimetallic Ru(ll) arrays using cross-coupling methodology
- the 1 , 10-phenanthrol ⁇ ne ligand is substituted at the 3-pos ⁇ t ⁇ on which is sterically and geometrically favored and provides electronic conjugation Tzalis et al , Tetrahedron Lett 36.6017 (1995)
- the Ru(ll) complexed 3-bromo-1,10-phenanthrol ⁇ ne is expected to be relatively electron-deficient and to therefore undergo facile oxidative-addition reactions
- the phenanthroline's nitrogens are "masked", and complications due to complexation of the transition-metal catalysts are prevented Suffert et al , Tetrahedron Lett 32 757 (1991 ) Treating a DMF solution of 4 (shown below) with 4-ethyny
- a representative procedure for the palladium-mediated cross-coupling reactions between 4 and aromatic acetylenes is as follows A mixture of 4 (50 mg, 0 052 mmol), (Ph 3 P) 2 PdCI 2 (4 mg, 0 0057 mmol) and Cul (0 5 mg, 0 0026 mmol) was treated with a degassed solution of 4-ethynyltoluene (11 ⁇ l, 0 11 mmol) in DMF (5 ml) and triethylamme (3 ml) for 1 hour at room temperature under Argon The crude reaction mixture was evaporated to dryness and the product 6 was obtained in 91% yield as an orange-red powder after successive crystallizations from dichloromethane-ethanol Selected data for 3 1 H NMR (500 MHz, CD 3 CN) d 8 72 (d, 1H, H2 Ph ⁇ n ), 8 62 (d, 1 H, H9 Ph ⁇ n ), 8 56-8 49 (m, 4H, H a
- the compounds synthesized represent a novel family of multi Ru(ll) complexes of various structures and spectral properties (Table 3)
- the parent complex 4 exhibits two mam absorption bands at 272 and 286 nm due to the overlapping ⁇ - ⁇ * transitions of the bpy and phenanthroline ligands Although the major band of the bpy appears to remain largely unchanged, extending the conjugation of the phenanthroline ligand results in the appearance of a lower energy band above 330 nm (Table 3)
- 6 shows a new band at 346 nm
- This lower energy n-n * transition is further red-shifted with increasing conjugation as is evidenced when comparing the spectrum of 6 to that of 7 (362 nm)
- the bmuclear complex 8 shows similar behavior to that of 7, indicating a substantial electronic conjugation between the two phenanthroline ligands through the biphenyl ring
Abstract
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JP53919097A JP2001527515A (en) | 1996-04-30 | 1997-04-29 | 3-Substituted or 3,8-substituted 1,10-phenanthrolines and their use in electron or energy transfer processes |
CA002252813A CA2252813C (en) | 1996-04-30 | 1997-04-29 | 3- and 3,8-substituted 1,10-phenanthrolines and their use in electron and energy transfer processes |
EP97922563A EP0900220A1 (en) | 1996-04-30 | 1997-04-29 | 3- and 3,8-substituted 1,10-phenanthrolines and their use in electron and energy transfer processes |
AU28202/97A AU729839B2 (en) | 1996-04-30 | 1997-04-29 | 3- and 3,8-substituted 1,10-phenanthrolines and their use in electron and energy transfer processes |
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US08/648,270 US20030078416A1 (en) | 1996-04-30 | 1996-05-15 | Substituted phenanthrolines |
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KR100995090B1 (en) * | 2009-12-10 | 2010-11-18 | 한국과학기술원 | Facile synthesis of microporous triple-bond based polymer networks using the acetylene gas as a building unit |
US10027048B2 (en) * | 2016-06-10 | 2018-07-17 | Denso Corporation | Electrical component and electronic device |
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WO1996003650A1 (en) * | 1994-07-25 | 1996-02-08 | Boehringer Mannheim Gmbh | Oligomer carrier molecules in which marker groups and haptens are selectively incorporated |
-
1996
- 1996-05-15 US US08/648,270 patent/US20030078416A1/en not_active Abandoned
-
1997
- 1997-04-29 JP JP53919097A patent/JP2001527515A/en active Pending
- 1997-04-29 EP EP97922563A patent/EP0900220A1/en not_active Withdrawn
- 1997-04-29 AU AU28202/97A patent/AU729839B2/en not_active Ceased
- 1997-04-29 WO PCT/US1997/007259 patent/WO1997041122A1/en not_active Application Discontinuation
- 1997-04-29 CA CA002252813A patent/CA2252813C/en not_active Expired - Fee Related
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WO1986002734A1 (en) * | 1984-10-31 | 1986-05-09 | Hyperion Catalysis International, Inc. | Luminescent metal chelate labels and means for detection |
WO1986004244A1 (en) * | 1985-01-18 | 1986-07-31 | The Trustees Of Columbia University In The City Of | Chemical probes for left-handed dna and chiral metal complexes as z-specific antitumor agents |
WO1990005732A1 (en) * | 1988-11-07 | 1990-05-31 | The Trustees Of Columbia University In The City Ofnew York | Mixed ligand complexes and uses thereof as binding agents and probres to dna |
US5286848A (en) * | 1990-05-07 | 1994-02-15 | Hamamatsu Photonics K.K. | Lanthanide cryptate of trisphenanthroline |
WO1996003410A1 (en) * | 1994-07-25 | 1996-02-08 | Boehringer Mannheim Gmbh | Hydrophilic metal complexes |
WO1996003650A1 (en) * | 1994-07-25 | 1996-02-08 | Boehringer Mannheim Gmbh | Oligomer carrier molecules in which marker groups and haptens are selectively incorporated |
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EP1052661A3 (en) * | 1999-05-14 | 2005-01-05 | Fuji Photo Film Co., Ltd. | Metal complex dye for a photoelectrochemical cell |
Also Published As
Publication number | Publication date |
---|---|
JP2001527515A (en) | 2001-12-25 |
EP0900220A1 (en) | 1999-03-10 |
AU729839B2 (en) | 2001-02-08 |
US20030078416A1 (en) | 2003-04-24 |
CA2252813A1 (en) | 1997-11-06 |
CA2252813C (en) | 2003-01-07 |
AU2820297A (en) | 1997-11-19 |
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